Digital Twin Series · Level 5 · Business value
Digital Twin Cost, ROI and Business Case
What will a digital twin cost, what will it save, and how long until it pays back, in numbers a manager will accept?
A digital twin is an investment in people, data and tools, not only a software licence. Its value comes from fewer stops, faster commissioning, more output and less scrap. This page lets you estimate the cost, calculate the benefit from your own plant data, build the cash-flow with a realistic ramp-up, test how sensitive the payback is, and check that your business case is complete. Amounts are in Indian rupees: 1 lakh is 100,000 and 1 crore is 100 lakh.
The base ranges are an example for a medium-complexity line of about 9 machines. The scaling with the number of machines, the complexity, the data you already have and who delivers the work are assumptions of this teaching model. Replace them with quotes from your own suppliers. Engineering effort is usually the largest part: count internal time too, even when it is not paid out in cash.
Put in your own numbers. Each line is the saving once the twin is fully working, before any ramp-up. Count a saving only when you can name the loss it comes from and measure it before and after. Savings that show up as cash (stops, scrap, energy, output) carry more weight with finance than time saved by engineers or trainers.
Cumulative cash flow starts at minus the initial investment. Benefits ramp up linearly, only a share of them is realised, and running cost starts in year 2 (year 1 support is inside the initial investment). Payback ignores the time value of money, so also read the NPV and the IRR. NPV discounts each year's cash flow at your cost of capital; IRR is the discount rate at which the NPV is zero. Both depend on the forecast, which is why the next section tests it.
Scenarios change the benefit, the cost and the ramp-up together (optimistic: benefit +30%, cost -10%, ramp-up 30% shorter; conservative: benefit -40%, cost +25%, ramp-up 50% longer). The bars below change one input at a time by 20% and show the effect on the NPV. They show which number deserves the most checking before you commit.
| Use case | What pays | How soon | What slows it |
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Payback depends on the loss you attack, the scope and how fast people adopt the result, so there is no single typical figure. Published payback claims are often from suppliers and are not comparable: ask for the baseline, the scope and what was counted.
All amounts, ranges and scenarios are illustrative and are not quotes or promises. Use your own costs and baselines, and have finance review the case.